Chain-link.



K. DODGE.

CHAIN LINK.

APPLIGATION FILED FEB. 8,1913,

Patented M21122 2 SHEETS-SHEET 1.

TH: mumu FLIERS CO.. FHGTO-LITHO.. wAsHINcmN K. DODGE.

CHAIN LINK.

APPLICATION FILED FEB. 8,1913.

Patented Mar. 2, 1915.

2 SHBBTSSHEET 2.

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CHAIN-LINK.

Applicationfilerl February 8, 1913.

To all whom it may concern:

Be it known that I, KARL Doncn, a citizen of the United States, residing in Philadelphia, Pennsylvania, have invented certain Improvements in Chain-Links, of which the following is a specification.

My invention relates to certain improvements in that type of chain link which is provided with a bar at one end and a hook at the opposite end arranged to receive the bar of an adjoining link.

The object of the invention is to provide means for uniting by welding, or by other suitable means, the hook section and the link section carrying the end bar, so that a unitary structure is formed.

My invention is a modification of an improved link for which application for patout is filed even date herewith by James M. Dodge; therefore, I lay no claim to making the hook member in sections and attaching it to the link member.

In the accompanying drawings :Figure 1, is a side view of my improved link; Fig. 2 is a plan view; Fig. 3 is an inverted plan view showing the parts assembled before welding; Fig. 4 is a view of the blank from which the link section is made; Fig. 5 is a side view showing the hook section and the link section separated; Fig. 6 is a view similar to Fig. 5 showing the two parts in position ready for welding; Fig. 7 is a detached perspective view of the link section; Fig. 8 is a perspective view of the series of hook elements assembled; Figs. 9 and, 10 are side views illustrating modifications in which the cross bars are on the same vertical plane as the side bars; Figs. 11 and 12 are views showing the slot in the top of the hook member; Fig. 13 illustrates the link member with a solid hook member; Fig. 14 illustrates the cross members each having a serrated edge; Fig. 15 is a modified form of the blank; and Fig. 16 is a diagram illustrating the angle of the slot in the hooked member.

Referring to the drawings, 1 is the link section made from sheet metal and bent so as to form an end bar 2 side bars 3 and abutting cross bars 4. The blank :0 from which the link section is made is illustrated in Fig. 4 and the portion forming the cross bar 2 is wider than that forming the side bars and is shaped so that the cross bar will be cylindrical in cross-section, as illustrated in Figs. 1 and 2. The portions i of the blank Specification of Letters Patent.

Patented Mar. 2, 1915.

Serial No. 747,135.

which form the abutting cross bars 4 are wider than the other portions of the bar, so that when the blank is bent on the lines w-w, these wide portions extend beyond the body of the link section, as illustrated in Flg. 5, and are for the purpose of provid ing sutlicient metal to fill the cavity, de-

scribed hereafter, when the blank section is welded to the hooksection.

5 is the hook section of the link, made of a seriesof elements 7 punched from a plate. These sections can be of any thickness deslred, and any number of them can be used, according to the width of the particular link being formed. Each element has a socket 8 and a slot 9, and when the parts are assembled, the sockets 8 are in alinement, and are shaped for the reception of the end bar 2 of an adjoining link. One of the side bars is reduced in the ordinary manner to allow the end bar to enter laterally through the reduced portion of the slot formed in the hook member, producing the ordinary detachable link, but it will be understood that my invention can be carried out in the manufacture of closed or other forms of links.

The slot in each hook member is arranged at a slight angle, as illustrated in Fig. 16, in which i) is the line at right angles to the center line of the link, and z is the center line of the cross-bar. This construction enables me to provide more metal at the point 10 of the link, than if the slot were made on the line o. This slot is made of su'llicient depth and size to receive the cross member 4,,as illustrated in Fig. 6, and the extension of the cross member is utilized to fill the gap which would otherwise be produced during the welding operation, so that when the weld is completed, the contour of the back of the hook member is complete, and is of proper dimension to receive the tooth of a sprocket wheel.

I preferably bevel the walls of the slot 9 near the outer end so that when the acetylene torch is applied to make the weld, the well will extend to a considerable depth in the slot.

While in Fig. 7 I have illustrated the cross-bars 4 as having a plane outer surface, in Fig. 14, I have illustrated the bars having a serrated outer surface as at 11, so that the flame from the torch can gain access to a greater surface of the metal than where the bar is plane.

gap.

lVhile I prefer to make the slot in the i under side of the hook member, as illustrated inFigs. 5 and 6, the slot maybe made in the upper side, as indicated in Figs. 11 and 12, without departingfrom the essential features of the invention, but I find that better results are obtained when the slot I is made on the .under side of, the hook 1116111.

her and at an angle, as shown in Figs. 5 and 16.

I preferably weld the hook members tog-ether on the line as indicated at 12, Fig. 1,

although they may be Welded together atv any point desired, or they may be secured together by rivets or other fastenings, or the single weld at the back, where the link member is secured to the hook member, may be sufficient to retain the elements in place.

In Fig. 13 I have shown a solid hook member 13, secured toa link member 1 1, in which the side members andcross-bars are welded in a single piece previously to being inserted in the slot in the hook member. ;It will be understood that While I prefer to build up the hook member from segments, a solid hook member may be used in connection with any of the modifications referred to above. e

In Fig. 15, I have illustrated a modification of the blank shown in Fig. 14, in which the central projection 00 extends on one side only of the blank and is shaped so that when it is foldedover a form into the round, it

will be substantially the shape illustrated in Fig. 7.

I claim: r

1. The combination of a quadrangular link section having transverse bars and side members and a hook section having asocket therein for the reception of a cross bar of an adjoining link and having an independent transverse slot back of the socket, said slot being open on one face of the link for the reception of one of the transverse bars of the above .mentioned link section, said parts being secured together to form a unitary structure.

2. The combination in a chain link, of a link section having transverse bars and side members; a hook section made of a series of elements placed side by side, each element having asocket; and an independent slot'at slot will extend across the hook member back of thesocket, one of the cross bars of the link resting in the slot in the link section and secured thereto to form a unitary structure.

3. The combination in a chain link, of a quadrangular link section; a hook section having a transverse socket therein for the reception of a cross bar of an adjoining link and having an independent transverse slot directly back of the socket and open at the under side of the link, one of the cross bars of the quadrangular link section resting in the slot and secured to the hook sec tion to form a unitary structure.

I In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

KARL DODGE.

WVitnesses: J 0s. H. KLEIN, WM. A. BARR.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

.. Washington, D. G. 

